What this criterion requires
Functions triggered by device motion (shake to undo, tilt to scroll) must have a conventional UI alternative, and motion triggering must be disableable.
Who it helps
People with motor disabilities who cannot perform the motion, or whose devices are mounted.
Example: fails vs passes
Shake-to-undo as the only way to undo an action.
An Undo button, with motion as an optional extra that can be switched off.
Device-motion features need a conventional alternative and a disable switch.
How to meet and fix it
- Pair every motion feature with a button and a disable setting
Common failures auditors find
- Shake-to-undo as the only undo path
Automated scanning catches a share of these instantly - run a free check - and a manual audit covers the judgement calls a tool cannot make.
Sources
- W3C, Understanding 2.5.4: Motion Actuation - w3.org/WAI
- W3C, How to Meet 2.5.4 (quick reference) - w3.org/WAI/quickref
Last updated . Reviewed by the EqualWeb accessibility team.
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